Storm Events Database

Event Details

Event Tornado
-- Scale EF1
-- Length 0.8 Miles
-- Width 100 Yards
County/Area LAVACA
Report Source NWS Storm Survey
NCDC Data Source CSV
Begin Date 2007-03-31 03:30:00.0 CST-6
Begin Location 4S HALLETSVILLE
Begin Lat/Lon 29.3922/-96.95
End Date 2007-03-31 03:34:00.0 CST-6
End Lat/Lon 29.4037/-96.95
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 100.00K
Crop Damage 0.00K
Episode Narrative In the early morning hours of March 31, both supercells and short bow echoes began to form along the north-south aligned cold front after it crossed the IH-35 corridor. Moving into the eastern portion of South Central Texas, these storms produced heavy rainfall, large hail, and two tornadoes.
Event Narrative The first tornado touched down near 0330 CST at the community of Williamsburg, approximately 4 miles south of Hallettsville along US77. It tracked from just west of US77 northward along the highway for almost a mile, crossing the highway and dissipating on the east side of US77. It was difficult to separate severe thunderstorm wind damage which preceded the tornado from the tornado damage itself. The tornado destroyed a barn near its initial touchdown with a level of damage indicating winds approaching 100 mph. This is consistent with NWS Doppler Radar indications of winds at or just above 90 mph in the Williamsburg area near 0331 CST. Doppler Radar at that time showed a comma-shaped echo with a hint of possible rotation on the north end of the comma, near Williamsburg. The tornado knocked over trees, with the debris pointed mostly toward the north or east. It also shoved a mobile home toward the east several yards. The tornado was rated an EF-1 on the enhanced Fujita Scale with winds estimated at 95 to 100 mph. The track was toward the north with a width of 100 yards and a path length of eight-tenths of a mile.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 4 175.00K 0.00K
HALLETSVILLE LAVACA CO. TX 03/31/2007 03:25 CST-6 Thunderstorm Wind 65 kts. EG 0 0 0.00K 0.00K
HALLETSVILLE LAVACA CO. TX 03/31/2007 03:30 CST-6 Tornado EF1 0 0 100.00K 0.00K
HALLETSVILLE LAVACA CO. TX 03/31/2007 03:45 CST-6 Tornado EF2 0 4 75.00K 0.00K
LA GRANGE FAYETTE CO. TX 03/31/2007 03:50 CST-6 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
MULDOON FAYETTE CO. TX 03/31/2007 04:00 CST-6 Flash Flood 0 0 0.00K 0.00K
CUERO DE WITT CO. TX 03/31/2007 04:30 CST-6 Flash Flood 0 0 0.00K 0.00K
YOAKUM LAVACA CO. TX 03/31/2007 05:00 CST-6 Flash Flood 0 0 0.00K 0.00K
Totals: 0 4 175.00K 0.00K